RFM12BP Datasheet, PDF (5/8 Pages) List of Unclassifed Manufacturers – UNIVERSAL ISM BAND FSK TRANSCEIVER MODULE

mode 3
240
mode 4
300
mode 5
360
t_lock
PLL lock time
After 10MHz step hopping,
frequency error <10 kHz
tst, P
PLL startup time
With a running crystal
oscillator
BR
Data rate
With internal digital
0.6
demodulator
BR_A
Data rate
With external RC filter
P_min
Sensitivity
(BER 10^-3,
433MHz band
868MHz band
BW=134KHz,BR=1 915MHz band
.2kbps,)
AFC_range AFC working range df_FSK : FSK deviation in the
received signal
RFM12BP
Datasheet REV2.3
270 300
350 375
400 450
30
us
200
300
us
115.2 kbps
256
-118 -116
-114 -112
-112 -110
kbps
dBm
0.8*
df_FSK
AC characteristic(Transmitter)
symbol parameter
remark
min
P_{max_50} Max. output power delivered to 433MHZ band
26
50Ohm load
868MHZ band
25
915MHZ band
25
BR_TX FSK bit rate
Via internal TX data
register
BRA_TX FSK bit rate
TX data connected to
the FSK input
df_fsk
FSK frequency deviation
Programmable in 15
15 kHz steps
typical max
27
27
27
172
Unit
dBm
kbps
256
kbps
240
kHZ
AC characteristic(Turn-on/Turnaround timings)
symbol
parameter
remark
min
typical max
T_st
Crystal oscillator Crystal ESR < 100
startup time
1
5
Transmitter
Synthesizer off, crystal
T_{tx_XTAL_ON}
turn-on time
oscillator on with 10 MHz
250
step
Receiver
Synthesizer off, crystal
T_{rx_XTAL_ON}
turn-on time
oscillator on with 10 MHz
250
step
Transmitter – Synthesizer and crystal
T_{tx_rx_SYNT_ON} ^Receiver
oscillator on during TX/RX
150
turnover time
change with 10 MHz step
Tel: [phone] Fax: [phone] E-mail: [e-mail]
http://www.hoperf.com
Unit
ms
us
us
us
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